Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 4, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Jan 13, 2011, 1:36 PM EST for Sumter County, Florida. It took effect at Jan 14, 2011, 12:00 PM EST. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 13, 2011, 1:36 PM EST (18:36 UTC)
- In effect from
- Jan 14, 2011, 12:00 PM EST
- Expired
- Jan 14, 2011, 6:00 PM EST
- In force
- 6 hr
- Issued by
- NWS Tampa Bay, FL
County Sumter County, FL
The radar
The Tampa radar (KTBW), 116 km from the middle of the area, began a volume at 18:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 6.6 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2355 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -94 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
086 WWUS82 KTBW 131836 RFWTBW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 136 PM EST THU JAN 13 2011 ...RED FLAG WARNING THIS AFTERNOON FOR ALL COUNTIES FOR LONG DURATIONS OF CRITICAL HUMIDITIES... ...A FIRE WEATHER WATCH IN EFFECT FRIDAY AFTERNOON FOR LEVY... CITRUS...SUMTER...AND HERNANDO COUNTIES FOR LONG DURATIONS OF LOW HUMIDITIES... .COOLER AND DRIER AIR CONTINUES FOR THE NEXT DAY OR TWO AS HIGH PRESSURE MOVES ALONG THE GULF COAST. FLZ039-042-043-048-132300- /O.UPG.KTBW.FW.A.0003.110114T1700Z-110114T2300Z/ /O.NEW.KTBW.FW.W.0004.110114T1700Z-110114T2300Z/ /O.CON.KTBW.FW.W.0003.000000T0000Z-110113T2300Z/ LEVY-CITRUS-SUMTER-HERNANDO- 136 PM EST THU JAN 13 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM EST FRIDAY... THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST FRIDAY...REPLACING THE FIRE WEATHER WATCH FOR FRIDAY. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. COOLER AND DRIER AIR WILL CONTINUE ACROSS THE AREA THROUGH THE END OF THE WEEK. AFTERNOON HUMIDITIES WILL FALL BELOW 35 PERCENT FOR AROUND 4 HOURS THIS AFTERNOON. THIS WILL ALLOW FOR THE RAPID SPREAD OF ANY FIRE. SIMILAR CONDITIONS ARE POSSIBLE FRIDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$ FLZ049>052-055>057-060>062-065-132300- /O.CON.KTBW.FW.W.0003.000000T0000Z-110113T2300Z/ PASCO-PINELLAS-HILLSBOROUGH-POLK-MANATEE-HARDEE-HIGHLANDS- SARASOTA-DE SOTO-CHARLOTTE-LEE- 136 PM EST THU JAN 13 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. COOLER AND DRIER AIR WILL CONTINUE ACROSS THE AREA THIS AFTERNOON WITH HUMIDITIES BELOW 35 PERCENT FOR AROUND 4 HOURS. THIS WILL ALLOW FOR THE RAPID SPREAD OF ANY FIRE. MOISTURE LEVELS WILL BEGIN TO SLOWLY INCREASE FRIDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$
1 follow-up statement
813 WWUS82 KTBW 140105 RFWTBW URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 805 PM EST THU JAN 13 2011 ...RED FLAG WARNING REMAINS IN EFFECT FRIDAY AFTERNOON FOR LEVY... CITRUS...SUMTER AND HERNANDO COUNTIES FOR LONG DURATIONS OF LOW HUMIDITIES... .DRY AIR WILL REMAIN OVER THE REGION ON FRIDAY RESULTING IN LOW HUMIDITIES...ESPECIALLY NORTH OF THE TAMPA BAY REGION. FLZ039-042-043-048-142300- /O.CON.KTBW.FW.W.0004.110114T1700Z-110114T2300Z/ LEVY-CITRUS-SUMTER-HERNANDO- 805 PM EST THU JAN 13 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM EST FRIDAY... A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM EST FRIDAY. RELATIVE HUMIDITIES WILL FALL BELOW 35 PERCENT FOR 4 TO 6 HOURS FRIDAY AFTERNOON. LOWEST HUMIDITIES WILL BE BETWEEN 25 AND 30 PERCENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN 24 HOURS. && $$
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 13, 2:48 PM EST | Freeze Warning | TBW | Polk | 18 hr |
| Jan 13, 2:48 PM EST | Hard Freeze Warning | TBW | Sumter | 18 hr |
Nearby
Red Flag Warnings in Florida, 2011Every red flag warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.